Device for removing foreign matter from the eyes.



W. A. JONES. DEVICE FOR REMOVING FOREIGN MATTER PROM THE EYES.

APPLICATION FILED MAY 5, 1911,

Patented Mar. 26, 1912.

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` ATTORNEYS COLUMBIA PLANQUE/APH CIJ.. WABMING'NJN. D. C.

UNTTED STATES PALTENT OFFICE.

WILLIAM A. JONES, OF SHARON, PENNSYLVANIA.

DEVICE FOR REMOVING FOREIGN MATTER FROM THE EYES.

To all whom t may concern Be it known that I, VJLLIAM A. JONES, acitizen of the United States of America, residing at Sharon, in thecounty of Mercer and State of Pennsylvania, have invented certain newand useful Improvements in Devices for Removing Foreign Matter from theEyes, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to a device for removing foreign matter fromeyes, and the primary object of my invention is to provide a device thatcan be advantageously used for extraetingforeign matter from eyes byutilizing vacuum or suction'and a magnet.

Another object of this invention is to provide a simple and inexpensiveinstrument that can be easily and safely manipulated for removingparticles of metal, dirt or other matter from an eye, without injuringthe eye or causing any pain.

A further object of the invention is to provide an instrument of theabove type consisting of comparatively few parts easily and quicklyassembled and maintained in a sanitary condition.

lVith the above and other objects in view the invention resides in thenovel construction, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference will now be had to the drawing wherein like numerals designatecorresponding parts throughout the several views, in which Figure 1 is avertical sectional view of the device. Fig. 2 is a front elevation ofthe same. Fig. 3 is a bottom plan of the device. Fig. 4 is a sideelevation of a tubular piston adapted to form part of the device. Fig. 5is a cross sectional view of the same. Fig. 6 is a plan of a pistonhead. Fig. 7 is a side elevation of the same, and Fig. 8 is a plan ofthe cylinder of the device.

The reference numeral 1 denotes a cylinder having the lower end thereofopen and exteriorly screw threaded, as at 2 to receive a nipple 3provided with a detachable suetion head 4, preferably made of rubber orother soft material. The upper end of the cylinder l has an annularinwardly projecting flange 5 and a transverse web G provided with acentral bearing 7.

The reference numeral 8 denotes a tubular piston rod havingdiametrically opposed Specification of Letters Patent.

Application led May 5, 1911.

Patented Mar. 26, 1912.

Serial No. 625,159.

walls thereof provided with longitudinal slots t) adapted to provideclearance for the transverse web of the upper end of the cylinder 1. Thelower portions of the rod 8 are screw threaded, as at 10 to receive theconnection 11 of a piston head 12, said connection being slotted, as at13 to provide clearance for the web 6. The piston head 12 has a coverlt, preferably made of rubber, .serving functionally as a packing forthe piston head within the cylinder 1. The upper end of the rod S isclosed and provided with an exteriorly threaded boss 15 adapted toreceive a hollow cap 1G. The boss 15 has a socket 17 with the wallsthereof screw threaded to receive the exteriorly screw threaded shank 1Sof a magnet 19.

The reference numeral 2O denotes a coiled compression spring arrangedwithin the tubular piston rod, said spring having the upper convolutionthereof suitably connected to the closed end of the piston rod and thelower convolution thereof suitably connected to the bearing 7, saidspring normally maintaining the piston rod in a raised position with thepiston head 12 in the upper end of the cylinder 1.

The cylinder 1 has the outer side thereof provided with a longitudinalcasing 21 having the upper end thereof opened at the upper end of thecylinder and the lower end thereof closed. in proximity to the lower endof said cylinder. Extending into the easing 21 is the lower end of arack 22 having the upper end thereof soldered or otherwise connected tothe eap 16. The lower end of the cap 22 has a, guide head 23 within thecasing 21. and said rack is located in a lowered position within saidcasing by a pivoted dog 24 pivotally mounted between apertured lugs 25,carried by the casing 21. The upper end of the dog is weighted, as at 26whereby said dog will be normally retained either in engagement with therack 22 or with the lower end thereof protruding into the easing 21..

Operation To use the instrument to produce the suction or vacuum in thenipple 3, the piston rod S is lowered within the cvlinder 1 and isretained in a lowered position by `the dog 24 engaging the rack 22.lVhen held in this position the spring 20 is under tension. The nipple 3can now be placed in proximity to an eye and over the particle of matterto be removed. By then moving the dog 24C the rack 22 is releasedparticle of matter from the eye.

and the spring 20 immediately elevates the piston head and produces asuction or vacuum in the cylinder 1, which extracts the Vhen it isdesired to use the magnet 19, the cap 1G is removed, the piston 8lowered until t-he piston head protrudes from the lower end of thecylinder. The piston head is then unscrewed from the piston 8, thepiston elevated until the lower end thereof is above the cylinder 1, andthen. the piston 8 is unscrewed from the cap 16. The magnet 19 can beplaced very close to the piece of steel or metal to be removed from theeye and the same extracted.

The device in its entirety can be made of light and durable metal, hardrubber or any suitable material, and while in the drawing there isillustrated a preferred embodiment of the invention, it is to beunderstood that the structural elements thereof are susceptible to suchchanges as fall within the scope of the appended claims.

What I claim is 1. A device of the type described comprisn ing acylinder, a nipple carried by the lower end thereof, a slotted tubularpiston rod movably arranged in said cylinder, a piston head carriedbythe lower end thereof, a compression spring arranged within saidpiston rod upon the upper end of said cylinder, a casing carried by saidcylinder, a rack movable with said piston rod and adapted to slide insaid casing, and a` dog carried by said casing and adapted to retainsaid rack in a lowered position within said casing.

2. A device of tli'e character described comprising a cylinder providedat one end with a nipple and at its other end formed Copies of thispatent may bc obtained for five cents each, by addressing' theCommissioner of Patents,

with a transverselyextending web, a piston, a spring controlled slottedpiston rod straddling said web and operating in said cylinder, and meansfor arresting movement of said piston.

3. A device for removing foreign matter from the eyes Icomprising acylinder provided at one end with a nipple and at its other end with aninwardly-extending annular flange having a transverse web integraltherewith, a piston, and a spring controlled slotted piston rodstraddling said web and operating within said cylinder.

l. A device for removing foreign matter from the eyes comprising acylinder provided a=t one end with a nipple and at its other end with aninwardly-extending annular Hange having a transverse web integraltherewith, a piston, a spring controlled slotted piston rod straddlingsaid web and operating within said cylinder, and

means for arresting movement of said pis- 1 A to-n.

5. A device for removing foreign matter WILLIAM A. JONES.

lVitnesses G. W. TAMPLIN, ROY NEVILLE.

Washington, D. C.

